1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alla [95]
3 years ago
6

To solve this expression, which operation should be performed last?

Mathematics
1 answer:
Vladimir79 [104]3 years ago
6 0
D. Add 5 to 2 because you start with the parentheses first
You might be interested in
V
Jlenok [28]

Answer:c

Step-by-step explanation:

6 0
3 years ago
NEED HELP IMMEDIATELY Which expression is equivalent to one over four n − 16?
Gemiola [76]

B. 1/4(n - 64)

Multiplying n and -64 by 1/4 leaves you with 1/4n - 16, the original equation.

5 0
3 years ago
14) A submarine is at a depth of 550 meters below sea
natta225 [31]
X=30 degrees for each of the congregant angles
3 0
3 years ago
A donut store has 11 different types of donuts. You can only buy a bag of 3 of them, where each donut has to be of a different t
MakcuM [25]

Answer:

165.

Step-by-step explanation:

Since repetition isn't allowed, there would be 11 choices for the first donut, (11 - 1) = 10 choices for the second donut, and (11 - 2) = 9 choices for the third donut. If the order in which donuts are placed in the bag matters, there would be 11 \times 10 \times 9 unique ways to choose a bag of these donuts.

In practice, donuts in the bag are mixed, and the ordering of donuts doesn't matter. The same way of counting would then count every possible mix of three donuts type 3 \times 2 \times 1 = 6 times.

For example, if a bag includes donut of type x, y, and z, the count 11 \times 10 \times 9 would include the following 3 \times 2 \times 1 arrangements:

  • xyz.
  • xzy.
  • yxz.
  • yzx.
  • zxy.
  • zyx.

Thus, when the order of donuts in the bag doesn't matter, it would be necessary to divide the count 11 \times 10 \times 9 by 3 \times 2 \times 1 = 6 to find the actual number of donut combinations:

\begin{aligned} \frac{11 \times 10 \times 9}{3 \times 2 \times 1} = 165\end{aligned}.

Using combinatorics notations, the answer to this question is the same as the number of ways to choose an unordered set of 3 objects from a set of 11 distinct objects:

\begin{aligned}\begin{pmatrix}11 \\ 3\end{pmatrix} &= \frac{11 !}{(11 - 3)! \times 3 !} \\ &= \frac{11 !}{8 ! \times 3 !} \\ &= \frac{11 \times 10 \times 9}{3 \times 2 \times 1} = 165\end{aligned}.

5 0
2 years ago
Christopher estimates it will take him half an hour to complete his math homework. He is able to complete it in 25 minutes. What
marin [14]

Answer:

The percent error in his estimate is<u> 16.67%</u>.

Step-by-step explanation:

Given:

Christopher estimates it will take him half an hour to complete his math homework.

He is able to complete it in 25 minutes.

Now, to find the percent error  in his estimate.

Time estimates of completing homework = 30 minutes.

Time actual taken to complete homework = 25 minutes.

Error in estimate = Time estimates of completing homework - Time actual taken to complete homework.

Error in estimate = 30 minutes - 25 minutes.

Error in estimate = 5 minutes.

Now, to get the percent error:

Percent\ error =\frac{Error\ in\ estimate}{Time\ estimates\ of\ completing\ homework} \times 100.

Percent\ error=\frac{5}{30} \times 100

Percent\ error=\frac{500}{30}

Percent\ error=16.67\%.

Therefore, the percent error in his estimate is 16.67%.

6 0
3 years ago
Other questions:
  • Find the slope of the line
    12·2 answers
  • the bus fare in a city is $2.00. people who use the bus have the option of purchashing a monthly coupoun book is $20.00. with th
    10·1 answer
  • Consider a box with a square base that has a volume of 64 cubic inches and a height of 4 inches. What is the volume of a similar
    7·1 answer
  • 8 (c-9)=6 (2c-12)-4c
    9·1 answer
  • What are the multiples of 4?
    9·1 answer
  • Matt had 5 library books. He checked out 1 additional book every week without retuening any books. Whats the matching equation
    8·1 answer
  • -1/3/4 + 1/1/6 equals what in fractions
    8·1 answer
  • What is the area of the rectangle, in square feet?<br> 29<br> 58<br> 120<br> 180
    6·2 answers
  • Diana ordered a shipment of 48 sun hats for the store she owns. Of the 48 hats she ordered, about 20% were pink. How many of the
    9·2 answers
  • 56<br> х<br> 52<br> Can someone help ?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!